Package core holder for yarn packaging device



PACKAGE CORE HOLDER FOR YARN PACKAGING DEVICE Original Filed Aug. so, 1954 INVENTORS JOSEPH L. KILLURAN WILLIAM J ELVIN Patented Feb. l, 1938 UNITED STAT PACKAGE cone HOLDER FOR YARN rack- AGING DEVICE v a I William J. Elvin, Cumberland, Md, and Joseph L. Kllloran, Drummondville, Quebec, (laliada,

assignors to Celanese Corporation of corporation of Delaware America, a

Original application August 30, 1984, Serial No.

Divided and this application February 13, 1936, Serial No. 63,730

Claims.

This invention relates to a yarn packaging device and more particularly to such a device that draws yarns from a package such as a bobbin, imparts a twist to the yarn and winds the same into a 5 cross-wound packagesuch as a cheese. This invention relates more particularly to a tube holder for holding the core, about which the package is wound, positively in position yet adapted for quick removal and replacement of the package.

This application is a division of our co-pending application S. No. 742,108, filed August 30, 1934, which has issued as Patent No. 2,048,787.

Anobject of the invention is a commercially practical device which will twist and package fine filaments of yarns such that the resulting package may be large, say 1 lbs., firm, free from tendencies to fluff at theends at which is uniform in tension, without soft spots. Another object of the invention is a commercially practical device in which full packages may be removed and empty cores inserted within a minimum time. Another.

and drawing.

In the drawing, wherein like numbers refer to the same or equivalent elements,

Figure 1 is a side elevation partially in section 0 of the package lifting elements and core holding elements,

Figure 2 is an end view of the package lifting elements shown in Figure 1,

Figure 3 is a detail, partially in section, of a part of the core holding device and Figure 4 is an end view of the core holding device shown in Figure 3.

Ill the cross-winding of packages, such as cheeses, the yarn is guided to the take-up package by means of a reciprocating guide member while the take-up package is rotated by resting upon a power driven rotating roller. If the take up package, especially when of a large size, is held against the rotating roller solely by its own weight it has a tendency to bounce or jump which gives it a non-uniform rate of rotation and also a variable relationship to the reciprocating guide member. This results in a package that is easily fluifed, i. e. increments pf yarn form arcs across the end of the package. These types of packages cannot be roughly handled nor even be employed in certain types of textile operations. By employing this invention, however, the -take-up package,- although movable to and awayfrom the rotating roller, has a more determined action.

In accordancewith our invention, we have devised a device for winding yarns and threads into,

cross-wound packages, which packages are solid and free from ununiform ends. The device is also constructed to make the replacing of an empty core or package base for the loaded core or package base very simple and requiring a minimum of time.

The device shown in the drawing and described in this specification is particularly adaptable for use on the complete device shown in the parent application S. No. 742,108, Patent No. 2,048,787, July 28, 1936, referred to above.

The invention included in this application is a lifter for a take-up package and also an expansible core holder for holding the take-up package. used in connection with the bobbins shownin the parent application acts automatically. To still further increase the number of packages that one operator can maintain in rtmning condition there is need of aquick yet positive means of re- This device is so designed and when This tube holder consists of a suitable bracket 53 for supporting a tube 22 having means" at 52 for raising same-on failure of thread or by the operator when a complete package has been formed on the tube. This bracket may be of any suitable construction but for the particular device shown in Figure 1 it may consist of a bracket body 53 having a U shaped portion, theends of which are split bearings 51 adapted to be mount-' ed for pivotal movement about a stationary rod 54, and an arm III for supporting an expanding tube holder ill]. Arms 51 are drilled for rod 54 and slotted in an approved manner at ll2 to provide a spring action about the rod 5|. The spring action of the arms 51 may be governed by screws 56. Screws 56 are preferably long enough for a. suitable compression spring llll to beplaced under its head for forming a resilient adjustment for arms'57. The more pressure applied tostalifting means.

The shaft III is provided with a suitable male right hand buttress or other fast-feed screw thread III on which is threaded, by means of a similar female thread III, a sleeve or collar I04,

which sleeve or collar acts as a thrust collar. The buttress thread is preferablyreversed so as to provide a self-locking action when tightened. -An expanding tube holder III is counterbored at each end, leaving an inclined shoulder H0, and is slotted along the length of the tube with slots III about its circumference. Expanding tube holder H0 is also provided with an external shoulder I20 at one end that acts as a stop when placing in position the tube or core 22 on which the thread or yarn is to be cross-wound.

Thimble I00 which is suitably formed to receive radial thrust bearing I00 and thrust sleeve or collar I00 and thimble III which is suitably formed to receive radial thrust bearings I00 and retainer collar I01 are placed one in each endof the expanding holder IIO. This assembly is placed on shaft I02. The retainer collar I01 may be held in place in the assembled device by means of a left hand threaded cap screw I00. The purpose of using a left hand thread on I00 is to insure that the retainer collar I0'l shall always be held tightly in place, since the direction of rotation of the assembly is left handed when viewed from the outer end of the shaft I02.

' Other locking means may, however, be employed.

In operation, handle I00 is raised to position shown in dotted lines in Fig. 2, and when in this position there is no expansion of tube holder H0. The tube or core 22 may be'freely slid on or of! the holder. In loading, a tube or core 22 is placed in position on holder H0 and against the stop shoulder I20. Handle I00 is then moved to the position shown in full lines in Fig. 3 which causes the actuating thrust sleeve or collar I04 to rotate about shaft I02 through buttress threads III and Ill in a direction that will force it' against the bearing I00. Thimble I05 being forced inwardly of the holder, by action of feed of the buttress threads I i4 and I I0 through bearing I00 causes an opposite and equal pressure on thimble I 2| through expanding holder I I0, since thimble III, its bearing I06 and retainer collar I01 are held in an axial stationary positionby cap screw I00. The action of thimble I05 moving inwardly and exerting pressure to thimble I2I through expanding holder 0' causes expanding holder IIO to expand in a radial direction.' This expansion grips the tube or core 22 and holds it in place during the winding operation.

The rotation of the .core is effected by a frictional drive acting on the yarn forming. the surface of the package, whereby the package may readily be rotated with a constant peripheral speed.

At the completion-of the winding operation, the handle I00 is again moved to dotted line position, which causes, through buttress threads II may be removed.

ns ses at If for more ure resistrywith the land m mm; on collar m and shaft m. respectively, to relieve the pressure on the bearings I00, and on the thimbles I00 and Ill. This forces the thimbles I 00 and III apart. :The in-'-' ternal pressure on the tube or core 22 is then repackage leased and the completed cheese or other It is to be understood that the foregoing detailed description and drawing are merely given by way of illustration and many alterations may be made therein without departing from th spirit of our invention.

Having described our invention, what wefdesire to secure by Letters Patent is:

Y 1. In a machine for producing on a core a cross-wound package of yarn, the combination -with a stationary support'forming a part of the machine and a bracket adapted to rotate 'on said stationary support, of means for releasably holding the package, said means including a nonrotatable shaft mounted in said bracket and supported at one end only, an expansible cylinder for expanding against the inside of a core, shoulders near each end of the cylinder and on the interior thereof, a pair of thrust bearings mounted on said shaft and supporting said expansible cylinder by said shoulders and means for moving one of said thrust bearings including a sleeve having a handle attached thereto.

2. In a machine for producing on a core a cross-wound package of yarn, the combination with a stationary support forming a part of the machine and a bracket adapted to rotate on said stationary support, of means for releasably holding the package, said means including a nonrotatable shaft mounted in said bracket and supported at one end only, an expansible cylinder for expanding against the inside of a core, said expansible cylinder having shoulders on the inside thereof and axial slots running substantially the full length thereof, a pair of thrust bearings mounted on said shaft and supporting said expansible cylinder and means for moving one of said thrust bearings including a sleeve having a handleattached thereto.

3. In a machine for producing on a core a cross-wound package of yarn, the combination with a stationary support forming a part of the machine and a bracket adapted to rotate on said stationary support, of means for releasably holding a core, said means including a non-rotatable shaft mounted in said bracket and supported at one end only, an expansible cylinder for expanding against the inside of said core, shoulders near each end of the cylinder and on the interior thereof, a pair of thrust bearings mounted on said shaft and supporting said expansible cylinder by said shoulders and means including a movable sleeve mounted on said shaft for moving one of said thrust bearings.

4. In a machine for producing on a core a cross-wound package of yarn, a combination with a stationary support forming a part of the machine and a bracket adapted to rotate onsaid stationary support. of means for releasably holding a core, said means including'a non-rotatable of and axial slots running substantially the full length thereof, a pair of'thrust bearings mounted on said shaft and supporting said expansible cylinder and means including a movable sleeve mounted on said shaft for moving one of said thrust bearings. I

5. In a machine for producing on a core a cross-wound package of yarn, the combination with a stationarysupport forming a part of the machine and a bracket adapted to rotate on said stationary support, of means for releasably holding a core, said means including a non-rotatable shaft mounted in said bracket and supported at one end only, said shaftbeing screw threaded to receive a screw threaded sleeve, an expansible cylinder for expanding against the inside of said core, shoulders near each end of the cyline der and on the interior thereof, a pair of thrust bearings mounted onsaid shaft and supporting said expansible cylinder by said shoulders, said sleeve being adapted, on rotation, to move one of said thrust bearings axially.

WILLIAM J. ELVIN.

JOSEPH L. KILLORAN. 

